Public bug reported: This has apparently been a thing since at least 16.04
Install a clean version of Ubuntu, install chkrootkit, run a check. tcpd will report as infected. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: chkrootkit 0.52-1 ProcVersionSignature: Ubuntu 4.15.0-42.45-lowlatency 4.15.18 Uname: Linux 4.15.0-42-lowlatency x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 CurrentDesktop: MATE Date: Mon Dec 17 18:30:29 2018 InstallationDate: Installed on 2018-12-05 (12 days ago) InstallationMedia: Ubuntu-MATE 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) SourcePackage: chkrootkit UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: chkrootkit (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1808882 Title: false positive on tcpd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chkrootkit/+bug/1808882/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs